热连轧机组油膜轴承对润滑系统的要求外文文献翻译、中英文翻译、外文翻译.docVIP

Requirements of lubrication system for oil film bearing of hot strip mill Zhao Weiliang1, Han Yingli2 (1. Technical Improvement Department of Handan Iron and Steel Company, Handan 056015, China; 2. 2. Hebei Machinery and Equipment Complete Bureau, Shijiazhuang 050051, China) Abstract: In this paper, the requirements dynamic pressure oil film bearing on the lubricating oil index were briefly described, and the composition of oil film bearing lubrication system was briefly described according to the characteristics of oil film bearing. Key words: oil film bearing; Viscosity; The temperature control 1 introduction At present, dynamic oil film bearings are generally used in the support roller bearings of rough and finish mills at home and abroad. The service effect and life of oil film bearings will directly affect the performance of the rolling mills and the production of the whole unit. Performance requirements of oil film bearings on lubricating oil The lubricating fluid used for oil film bearing must be special oil for oil film bearing. The viscosity of the lubricating fluid is selected according to the clearance of the bearing, the speed of the rolling mill and the load. The oil inlet pressure of the oil film bearing should be kept within the range of 0.1Mpa ± 0.02Mpa, the oil inlet temperature should be kept at 40℃±2℃, the oil return temperature should not be higher than 65℃, and the average temperature of the oil film bearing working area should not be higher than 75℃. 2.The lubricating oil requirements of oil film bearings mainly include the following aspects: (1) High viscosity index. The thickness of bearing oil film is an important part of AGC rolling model. Therefore, the viscosity of oil film bearing oil is required to remain stable, so that the calculation model of oil film thickness can remain accurate. Therefore, in addition to the configuration of cooling and heating devices in the oil film bearing lubrication system to keep the oil temperature consta